Water-based base layer treating agent capable of being stored at low temperature and preparation method of water-based base layer treating agent

Abstract

The invention discloses a waterborne base layer treating agent capable of being stored at low temperature and a preparation method thereof, and the preparation method comprises the following steps: (1) mixing and uniformly stirring water, a pH regulator and an emulsifier to obtain required liquid soap; (2) emulsifying the liquid soap and a plasticizer through a colloid mill to obtain an emulsified plasticizer; and (3) heating the emulsifying plasticizer to a first temperature, heating the asphalt to a second temperature, mixing the emulsifying plasticizer and the asphalt through a colloid mill, and emulsifying again to obtain the base layer treating agent. According to the invention, a'primary emulsification 'preparation method is broken, and a'secondary emulsification' technology is innovatively adopted, so that the addition amount of the plasticizer can be greatly increased, oil flooding is avoided, and the product uniformity is good. The freezing point of the water is reduced to-9 to-10 DEG C under the action of the plasticizer, so that the water can be normally stored under the environmental condition of-8 DEG C in winter.

Description

technical field [0001] The invention belongs to the technical field of construction engineering waterproof materials, and more particularly relates to a water-based base treatment agent that can be stored at low temperature and a preparation method thereof. Background technique [0002] Base layer treatment agent is a kind of coating used to seal the base layer and enhance the adhesion between the base layer and the coil during the construction of waterproof membrane. It is divided into two categories: solvent-based and water-based. The solvent-based base treatment agent has good permeability and adhesion, but it is not suitable for wet base surfaces. At the same time, it is harmful to human body and the environment during construction, and is dangerous and flammable. Water-based base treatment agent can be used for wet base surface, but cannot be stored at low temperature (generally need to be stored above 5°C, below 0°C, it will freeze and demulsification, which does not m...

AI Technical Summary

Problems solved by technology

[0003] At present, due to the promulgation and implementation of local standards, solvent-based base treatment agents can no longer meet the requirements of landmarks, and water-based base treatment agents have the defect that they are not easy to store under low temperature conditions. It is urgent to develop a base treatment agent that is both environmentally friendly and suitable for low temperature environments.

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